DDH662 is the first deep drill hole in this area so all it can...

DDH662 is the first deep drill hole in this area so all it can tells us is the grades and the rock types in its cores, and any structures that it penetrates. We need more holes to get any real idea of what is here. The geology shown at depth in Fig 4 is a what can be deduced from this hole and probably some geophysics , so more holes will almost certainly change the picture. For example DDH466 in Fig 3 appears to me to have hit mineralisation shallower than I would expect from the cross section in Fig. 4.

It's a bit like trying to deduce a golf player's talent from a single hole, many a hopeless golfer has hit pars, and many a good one double bogies. Nothing wrong with placing a bet on Zaraa but it is very early days.